Active Support trick

Author: ArtOfCode-

app/jobs/auto_close_complaints_job.rb

@@ -7,7 +7,7 @@ def perform(*_args)
     statuses = complaints.map do |complaint|
       complaint.update_status 'closed'
     end
-    successful = statuses.map { |x| (x && 1) || 0 }.sum
+    successful = statuses.compact_blank.size
     logger.info "Found #{complaints.size} inactive complaints, successfully closed #{successful} of them."
   end
 end